Katiyar Subodh K, Bihari Shailesh, Arun S, Rawat Tara
Department of TB and Respiratory Diseases, Dr. Murari Lal Hospital, GSVM Medical College, Kanpur, Uttar Pradesh, India.
Indian J Community Med. 2008 Apr;33(2):129-30. doi: 10.4103/0970-0218.40886.